Topic
Crystal oven
About: Crystal oven is a research topic. Over the lifetime, 955 publications have been published within this topic receiving 10380 citations. The topic is also known as: oven-controlled crystal oscillator & OCXO.
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TL;DR: In this article, a general type of oscillator, which results from the combination of an active element with a selective network, is considered, and amplitude and frequency are deduced by a simple method, valid for quasi-sinusoidal oscillation.
Abstract: A general type of oscillator is considered, which results from the combination of an active element with a selective network. Amplitude and frequency are deduced by a simple method, valid for quasi-sinusoidal oscillation. If the oscillator is perturbed, relative amplitude and frequency variations can be calculated. Their product depends only upon the perturbation itself and a coefficient which is a function of the selective network. It seems apt to choose this coefficient as the figure of merit of the oscillator. For ordinary LC oscillators it is approximately equal to the Q. Values are calculated for certain RC oscillators. Some experiments confirm the results.
3 citations
Patent•
17 Aug 1984
TL;DR: In this paper, a variable reactance element is inserted in series with a crystal resonator, the variable reaction element having characteristics which are dependent upon the conditions of acceleration, the characteristics of the element which is a compensator are substantially complementary to the properties of the crystal resonators.
Abstract: A variable oscillator is disclosed which is adjustable by a user to a desired frequency. A variable reactance element is inserted in series with a crystal resonator, the variable reactance element having characteristics which are dependent upon the conditions of acceleration. The characteristics of the element which is a compensator are substantially complementary to the characteristics of the crystal resonator to balance out said variation of the crystal resonator during conditions of acceleration. There is also provided a variable reactance network connected to the oscillator to adjust the operating frequency of said oscillator.
3 citations
TL;DR: In this paper, a 0.12 μW power dissipation quartz oscillator with 32,768 Hz frequency was designed and fabricated for low power, battery-powered and energy harvesting systems.
Abstract: A 0.12 μW power dissipation quartz oscillator with 32,768 Hz frequency was designed and fabricated. Stability of the oscillator versus power supply and temperature variations was measured. The design is suitable for the role of the RTC (real-time clock) or main system clock in low-power, battery-powered and energy harvesting systems.
3 citations